masadaoj@gmail.com: a cone circumscribes a sphere and has its slant height equal to the diameter of its base. show that the volume of the cone formed, if a plane is passed through the circle of contact, is 9/32 the volume of the sphere.
Now, that was different.
What you are looking at is the cross section of the cone. From the bottom to the top. My presentation could do with some improvement. Sorry. Hopefully you will be able to work out what I have done and why I have done it.
140311 Circumscribed sphere.JPG
+118723 
